#!/bin/bash
# Program:
#        Show "Hello" from $1 ... by using case ... esac
# History:
# 2010/06/06        xuzhi       First Release
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

case $1 in
    "hello")
            echo "Hello, how are you?"
            ;;
    "")
            echo "You MUST input parameters, ex> $0 someword"
            ;;
    *)
            echo "Usage $0 {hello}"
            ;;
esac
